Sochi organizing committee head Dmitry Chernyshenko said infrastructure in the Black Sea resort is now 70 per cent complete and that preparations are on schedule for Russia's first Winter Games.
"Sochi will be the showcase for Russia for the world to see," he told The Associated Press.
Across Russia, volunteers took part in 500-meter relay races mimicking all 22 Winter Olympic events.
Racers in Moscow imitated ice hockey by rollerblading and taking penalty shots on the track. Bobsledders in the southwestern city of Novocherkassk slalomed past obstacles on longboards. More than 12,000 people in 15 cities formed giant human figures representing all Winter Olympic sports by moving coloured shields in co-ordinated displays.
Organizers introduced the new slogan, "Zharkiye. Zimniye. Tvoyi" in the original Russian.
"Hot" refers to Sochi's climate, unusually warm for a Winter Olympic venue, and the passion for the games. "Cool" stands for the winter sports played and the cold weather commonly associated with Russia. "Yours" indicates organizers' wish that the event be all-inclusive.
President Vladimir Putin has made the Sochi Games a cornerstone of his third term. He views it as a key project for improving Russia's international image.
Around US$30 billion has been earmarked for building facilities and developing infrastructure in Sochi — parts of which were only single roads until a few years ago.
Right now, Sochi is "the biggest construction site in the world," Chernyshenko said.
More than 355 kilometres of roads and 200 kilometres of railway have been built for the games. Facilities in the mountains and along the coast will be tested this winter.
This will be the first time Russia hosts the Winter Olympics, although it is traditionally one of the strongest competitors.
Russians will be hoping their athletes improve on their results at the 2010 Games in Vancouver, when they won only 15 medals and finished 11th in the table — the country's worst ever performance.